Electrical regulating device.



R. E. SAGLE. ELECTRICAL REGULATING DEVICE.

" I APPLICATION FILED OCT. 18, 1913 1,152,913. PatentedSept. 7, 1915.

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ROY E.

SAGLE, OF ROSEVILLE, OHIO.

ELECTRICAL REGULATING DEVICE.

Specification of Letters Patent.

Patented Sept. '7, 1915.

Application filed October 18, 1913. Serial N0. 796,042.

To all whom it may concern:

Be it known that I, ROY E. SAGLE, a citizen of the United States, residing at Roseville, in the county of Muskingum and State have invented certain new and useful Improvements in Electrical Regulating Devices, of which the following is a specification. v v

The object of this invention is to provide an electrical regulating device comprising a "ing member mechanically and electrically coacts in such a manner as to provide for an electrical regulation of said device upon relative movement of one member with respect to the other. In the most improved embodiment of my invention, the sliding member or slider is arranged for linear movement parallel with the axis of the spiral conductor and circumferentially around the spiral conductor, or around the axis thereof, so as to obtain linear movement of the slider by circumferentialmovement about the coil or spiral. I

A. still further object of the invention is to provide a regulating device whereby frac tions of a length of one convolution can be cut into or out of circuit to increase or decrease resistance, depending on whether it is cut il'lLOlI; cut out of circuit, whereby the most minute electrical adjustment will be afforded.

,Other features and objects of the invention will be more fully described in connection with theaccompanying drawing and will be more particularly pointed out and ascertained in and by the appended claims.

Inthe drawing :Figure 1 is a view in side elevation illustrative of one embodiment of my invention. Fig. 2 is a sectional view on line 22 thereof. Fig. 3 is a diagrammatic view showing the electrical circuit.

Like characters of reference designate similar parts throughout the different ures of the drawing.

"1n the specific construction shown, 1. designates a support of insulation which is in the form of a cylinder and which is fixed to a base of insulating material designated at '2. An axially disposed support 3 is provided which is in the form of a metal tube and which is mounted upon the base 2 for supporting the cylinder 1. The axial support 3 may be fixed in the ends of the cy inder l, the lower end being designated leg 9 is rotatably carried on the axial support 3 at a point above the cylinder 1. In cases where the frame 7 is movable with respect to the cylinder 1, as in the present construction, I provide means such as a yoke 10, having a thumb wheel 11, for turning the frame or slider carrier 7 circumferentially about the cylinder 1. The parts may be fitted in such a manner that the frame 10 will be frictionally held in adjusted positions.

Extending parallel with the axis of cylinder 1, and mounted in the carrier 7 are two slider rods 12 of electrically conducting material. A slider 13 is suitably apertured for guidance on said slider rods 12 in a linear path parallel with the axis of cylinder 1. Said slider 13 is formed of conducting material and is provided with means for mechanically and electrically coacting with a helical or spiral conductor 14 which is wound about the cylinder 1. Said means may comprise a U-shaped or caliper-like contact 15 having inturned terminals 16 for engagement with opposite sides of the convolutions of the conductor 14. The caliper contact 15 is electrically connected with the slider 13 and the latter may be provided with an auxiliary conductor 17, connected with the carrier 7, to insure an effective circuit.

The spiral or helical conductor '14, which may be a wire of relatively large cross sec tion, for resistance or like function,iswound to space the convolutions apart from each other in such ample distance as to permit the terminals 16 to engage opposite circumferential portions of the conductor 14. One end of the conductor 1 L may be'secured to the cylinder 1 at 18 while the. other end may be secured to the cylinder 1 at 19. Thumb screws 20 and 21 may be provided for attachment of conductors leading to the device.

Referring more 'partiduliirly --to Fig. 3, wherein the electrical circuit is diagrammatically illustrated it will be seen that the support 3 is connected by a conductor to one pole of a source of current, not

shown. The terminal end 19 of the conductor 14 is connected by a conductor 23 with another pole of a source of current. @i course the terminal conductors 22 and 23 will be connected up with the mechanism for which the device of my invention may be used to regulate. When the carrier frame 7 is rotated about the cylinder 1 by turning movement transmitted thereto to movement of thumb wheel 11 the slider will be lineally moved by reason of its mechanical coaction with the conductor 14 so as to cut a greater or less amount of the conductor 14, into or out of circuit, the slider being diagrammatically designated in Fig. 3 at 15. By reason of the circumferential adjustment afforded, it will be seen that even a fraction of one convolution of the conductor 14 may be out into or out of circuit through the turning of frame 7 in the manner hereinloefore set forth, leading to support 3 from slider 24, thereby affording the most minute adjustment for resistance or other regulation.

in the specific form shown, linear movement of the slider is effected by rotating the slider about the cylinder 1, and outside of the conductor. 14, and the conductor 14- is in the form of a cylindrical spiral or helical coil of Wire which is fixed against rota: tion but I Wish it to be understood that this is only one of several eflicient and Widely di'ii'erent forms clearly Within the scope of the invention.

It will be seen from the foregoing disclosure that the slider structure not only electrically, but mechanically coacts with the spiral conductor for electrical regulationupon relative movement of one with respect to the other, it being due to the me ilianical coaction between the slider and (inductor 14 that movement of one with repect to the other regulates the resistance.

While I have herein shown and described one specific fonunof my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

claim 1. In an electrical regulating device, a helically wound conductor rigidly mounted, a slider mounted in embracing relation with one of the windings of said conductor, and carrier mounted to have turning move ment around said fixed helically wound eonductor which turning movement is in a fixed horscutal plane, and a rod mounted on said carrier by which the slider is supported and upon which the same has movement as the frame is given turning movement to mit travel of the slider along the length or the conductor.

2. In an electrical regulating device, a cylinder rigidly mounted, a conductor secured in a helix about said cylinder, a frame mounted coaxially with said cylinder to have turning movement about said cylinder in a iixed and definite plane, a conductor mounted as a part said frame and carried in a fixed relation therewith, a slider mounted on said conductor member to be capable of sliding movement thereon. in a direction parallel with the axis of turning of said frame and engaged to embrace a portion of said helically mounted conductor, and all of said parts so arranged that movement of the frame in its fixed path about the cylinder carries the slider along the convolution of the conductor and causes movement thereofalong the length of the conductor carried by the frame.

3. In an electrical regulating device, a cylinder of insulating material, a support of conducting material axially disposed in said cylinder and mounted to rigidly sup port the sameto be fixed against rotation, a conductor mounted in a helix about said cylinder, a circuit lead connected with said conductive support, a second circuit lead connected with one termimd of said conductor, a frame of a conducting material mounted upon the support for said cylinder to be capable of turning movement around said cylinder in a llJTQCl plane of rotation, a conductor fixed in said. frame, a slider mounted on said conductor to be capable cl 1 sliding movement and engaged with a porr tion of said helica disposed conductor, and all oi said parts so arranged that a circuit is completed fron'i'the one lead to the other lead and that as the frame is turned the slider will be carried along the conductor upon. which it mounted and will out into and cut from the circuit a greater or less length of the helically mounted conductor.

in. testimon in presence on t Witnesses 

